Sash fastener



Patented Nov. 24, 1925.

UNITEDv STATES ROBERT WASHIBURN, 03? HARRISTON, ONTARIO, CANADA.

SASH FASTENER.

Application filed July 23, 1924. Serial No. 727,641.

To all cli/wm t may concern.:

, Be it known that I, Roma-rr Iasi-reunir, of the town of I-Iarriston, in the county of lVellington, Province of Ontario, Canada, a subject of the King of Great Britain, have invented certain new and useful Improvements in Sash Fasteners, of which the following is a specification.

rl`his invention relates to devices for attachment to windows, unprovided with counter balances, for the purpose of holding them raised to any desired height and to lock them, whenever desired, to prevent them being raised by persons outside the building and my object is to devise a fastener of this type which is neat, simple, effective and which is cheaply made. More particularly I have in mind certain improvements on the const-ruction shown in my Patent No. 1525677, dated Feb. 10, 1925.

Some difficulty has been found in fitting the device to windows with considerable lateral play and sometimes, though ,the device works satisfactorily when first applied, it requires adjustment afterwards owing to shrinking or swelling of 'the woodwork of the window. I have also found that the wooden wedges may mar the finish of fine woodwork or fail to grip 'firmly and also that careless individuals fail to keep tight the screws which secure the link wedges to the block so that the upper wedge drops and prevents the sash being lifted.

These troubles I have overcome by means of the modified construction of the device hereinafter' described and illustrated in the accompanying drawings in which Fig. 1 is a part elevation of part of a window frame and sash showing my improved fasteners in position;

Fig. 2 an enlarged front view of the device showing it in position 'to lock the sash raised; and

Fig. 3 a detail showing the upper wedge retaining mechanism.

In the drawings like numerals of reference indicate corresponding parts in the different figures 1 is a block, preferably of wood, which by means of screws 2 is secured to the side of a window sash. Owing to the difficulty of accurately positioning the block, particularly in the case of windows which are badly shrunk, the screws pass through slots 9 in the block. With this arrangement, if any error is made in positioning the block in the first place, the position of the block is readily changed, and any necessary change is also easily made in case the block requires readjustment at any time due to shrinking or swelling of the sash.

On the side adjacent the window frame the block has inclined faces formed there-- on, these faces inclining each way from the middle.

3 are wedges, formed of wood, adapted to fit between said faces and the window frame. The side of each wedge adjacent the window frame is provided with a rubber facing 10, partly inset in the wedge. These facing strips do not extend entirely to the points of the. wedges, but abut against the shoulders 11 which form supports for the facings, taking some of the strain from 'the cement with which the facings will usually be secured in position.

The wedges 3 are connected to the block by means of short pivoted links 1. These links retain the wedges in position, but do not interfere with their being moved readily to different positions as shown. This movement is facilitated by providing each link with a slot 6 whereby it is slidable on the pivot pin 8, connecting it with the block. Each -wedge is provided with a linger hold such as the screweye 5 by means of which it may be raised and lowered.

In order that the window may be easily raised from the inside without it being necessary to hold the upper wedge raised with one hand, I provide the following construction. In the block 1 above the pivot 8 of the upper wedge is driven a pin 12, which pin is adapted to engage in a notch 13 formed i-n the adjacent link 4. When the wedge has been raised nearly, but not quite to its limit, this notch is so positioned that it may be disengaged from the pin by slightly lifting the wedge and then moving it laterally and downwardly. By 'the reversal of these operations, the link may be engaged with the pin when it is desired to hold th upper wedge raised.

The device is operated as follows. The upper wedge is raised and held raised in the manner just described. The window sash is then lifted and as soon as it is raised to the desired height, the lower wedge 3 is lifted. It then jams between the block and sash frame and holds the sash in the position to which it has been raised.v To lock the window to prevent it being lifted from Without, the upper Wedge. is set free in the manner hereinbefore described and is pressed down between the sash and the block. The Window may thus be locked whether it is wholly down or' partly raised.

For use with the upper sash the device is constructed as shown in Fig. l, the device being the same as that used with the lower sash with the exception'tliat the upper half has been removed. With this arrangement I prefer to employ a light coil spring 7 connected at oneend with the blockand at its other end tothe wedge 3. This spring will draw the Wedge to the locking position as soon as upward movement of the sash ceases.

The` device constructed `as described will satisfactorily attain the object of my invention as set out in the preamble to this speci` fica-tion,

lVhat I claim is a l. A sash fastener-comprising a block adapted to be secured 'to a Window sash havingtheside adjacent. the Window sash inclined to form a wedge engagingsurfa'ce; a. wedge adapted to engagebetween said face and thewindowfranie; a link pivotally con-A nected with theblockandthe Wedgegthe link having a sliding engagement withthe pivot connectingv it -With i theblock.; and a pin on the block, the link having'a. notch therein adapted to hook over/thevpin to hold thelink, and therefore the Wedge ina raised position.

2. A sash fastener' comprising a block 35 lclined to form a wedge engaging surface;

a wedge adapted to engage between said face and the window frame; a rubber facing partly let into the sash engaging face of said wedge; a link pivotally connected with the blockand the wedge, the link having a sliding engagement with the pivot connecting.. it with the block; and a pin on the block, the link having a notch therein adapted to hook over the pin to hold the link, and therefore the Wedge ina raised position.

3. A sash fastener comprising a block adapted to be secured to a window sash having the side adjacent the. Window sash inclined to form a Wedge engaging surface; a wedge adapted to engage between said face and the window7 frame; a rubber facing partly let into the sash engaging .face of said Wedge; a link pivotally connected With the block and the Wedge, the link having a sliding engagement With the pivot connecting it with the block; and a pin on the block, the

link having a notchy thereinadapted to re'-y leasably engage on the pin to hold the link, and therefore the wedge in raised position; and screws for securing/the block to a Window sash, the block having transverse slots formed therein for the passage of the screws. Signed at Toronto, Can., this 15th day of July, 1924. Y

- RQBERT VVASHBURN. 

